General description Are you looking for a sustainable, environmentally friendly yet efficient alternative for your sand filter system? The vhbw filter balls are the perfect solution for convenient and effective pool maintenance. With an impressive filter performance of up to 1.5 microns, these filter balls outperform traditional sand filters, which only filter down to approximately 40 microns. Each 500 g pack of filter balls replaces 17.5 kg of filter sand, making them a lightweight and practical choice. Technical specifications Diameter: 5 cm Material: polyethylene Colour: white Weight per package: 500 g Replacement cycle: every 2 - 5 years Filter performance: up to 1.5 microns Reusable Washable by hand and in the washing machine Non-toxic & recyclable Compatibility and accessories Compatible with Miganeo and sand filter systems with a filtration rate of 20-40 m³/h Replacement for 58475, 040050 Other information Delivered vacuum-packed for easy handling and storage